The Bosch 26618BL 18 V 1/4" Hex Impact Drill/Driver was designed with Bosch's hammer and anvil mechanism to deliver up to 1,500"-Lbs. of impact-driving torque, and it's only 4.2 Lbs. This drill/driver provides a drill mode for high-speed and high-torque drilling, as well as an impact driving mode for superb fastening power. This muscular motor delivers 3,200 BPM and 2,800 no-load RPM, and it will drive up to 150 3" lag bolts between charges. In drill mode, it offers two drill settings – high torque (0-750 RPM) and high speed (0-2,800 RPM). The tool also delivers a Quick Change Chuck, Electronic Cell Protection and the best runtime in class. The set comes with an L-Boxx-2 carrying case and an Exact-Fit™ insert tray.